Recently had a rotted tree removed from our yard. There are carpenter ants everywhere as a result of its removal. What kind of carpenter ant is this?
Rainbow Springs
I believe this was a queen looking for a new colony location. There were several males flying around nearby, while this larger ant was lethargic (but alive and seemingly healthy) on this window ledge for several hours. They all disappeared in the evening.
Carpenter ant queen
Almost 1 cm long
This observation is for the larger individual on the left.
For the black individual on the right, see https://www.inaturalist.org/observations/206106679
This observation is for the smaller individual on the right.
For the brown individual on the left, see https://www.inaturalist.org/observations/206106670